Let's look back at this week's top Microsoft news, which was dominated by...

IE9 Platform Preview 3: video, audio, canvas, and fonts too: Microsoft this week launched the third of its Internet Explorer 9 Platform Previews. The new version includes long-awaited support for HTML5 video, along with hitherto unannounced support for the canvas bitmap drawing element.

Windows Live Essentials Wave 4 public beta is out: Microsoft has posted the first public beta of Windows Live Essentials Wave 4. The suite includes Messenger, Mail, Photo Gallery, Movie Maker, Writer, Family Safety, Sync, and the Bing Bar.